The ADTRAN Total Access OPTI-3 sets a new mark for OC-3 multiplexers,delivering three DS3 circuits from a single OC-3 feed. Designed tomeet the growing demand for DS3 deployment in today's economy, theTotal Access OPTI-3 eliminates the need for expensive SONET multiplexerequipment in terminal mode applications and provides the fullest use ofOC-3 capacity.